Generic Webhook Testing Endpoint

Generic webhook request example endpoint for testing custom providers and local integrations.

Accepts arbitrary webhook events for endpoint validation, header inspection, and payload debugging.

Endpoint URL

Use this endpoint when configuring the webhook sender:

https://hook-abc123.fasthook.io/

Example request (curl)

curl -X POST "https://hook-abc123.fasthook.io/" \
  -H "Content-Type: application/json" \
  -H "X-Event-Type: test.run" \
  -d '{"id":"evt_test_42","type":"test.run","data":{"ok":true}}'

Example headers

{
  "content-type": "application/json",
  "x-event-type": "test.run",
  "x-request-id": "req_4f9d"
}

Example payload (JSON)

{
  "id": "evt_test_42",
  "type": "test.run",
  "timestamp": "2026-04-21T09:00:00Z",
  "data": {
    "ok": true,
    "source": "custom-provider"
  }
}

How this webhook works

1. Provider sends a POST request to the endpoint URL.
2. FastHook receives and logs the request envelope.
3. Handlers validate signature and parse payload.
4. Failed deliveries can be replayed after fixes.

Common debugging checks

• Confirm provider sends JSON and content-type header correctly.
• Capture and inspect full headers when debugging auth failures.
• Replay failed requests after handler fixes to validate recovery.

Integration context

This page targets generic webhook flows and is optimized for debugging and testing scenarios developers face in production.

Last updated: Apr 21, 2026

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